- France 2026
- Executive summary
Executive summary
The edition on a few pages: the abstract, the key messages, the headline finding and what each steward reads in it.
Contents
- ·Edition home
- ·Executive summary
- 1France’s risk is coupled, not cumulative
- 2Key findings
- 3Systems and sectors at baseline
- 4Risks and capability
- 5Hot, dry summer with low river flows
- 6Lenses and readings
- 7The 2027 agenda
- 8Systems in depth
- AMethodology
- BData appendix
- CReferences and record
- ·Complete edition, for print
S.1Abstract
France enters 2027 having cut its territorial emissions to 369 Mt CO₂e in 2024, 32% below 1990, but at a pace the High Council for the Climate judges too slow for the 2030 target of 270 Mt1340. Its electricity is about 95% low-carbon and the country exported a record volume of power in 20247, yet the same nuclear fleet showed its exposure in 2022, when corrosion repairs and heat-limited cooling cut output to its lowest level since 198825. 2022 was the warmest year on record in metropolitan France8, and heat caused more than 3,700 deaths in summer 2024, three quarters of them among people aged 75 and over4. About 10.4 million detached houses are exposed to clay shrink-swell subsidence21 and 17.1 million residents to river flooding22. France produces nearly a fifth of the EU’s agricultural output23, while farmland birds have declined by about 30% since 198918. This Baseline Edition fixes the reference state for the five core systems, maps the dependencies through which shocks travel, and sets the questions the first operational edition will answer in Q1 2027. It ranks nothing and decides nothing.
S.2Key messages
The eight questions this edition answers, each with its status and source.
369 Mt CO₂e in 2024, 32% below 1990, but falling about half as fast as the 2030 target needs.13
Where do emissions stand?Reported
2022 was the warmest year on record in metropolitan France; the national adaptation plan now prepares for +4 °C by 2100.8910
Is the climate already changing?Reported
People aged 75 and over: about three quarters of the 3,700 heat deaths in summer 2024.4
Who is most exposed to heat?Reported
Nuclear output fell to its lowest since 1988 in 2022, when heat and low flows limited cooling.25
How exposed is electricity to heat and drought?Reported
About 17.1 million residents are exposed to river flooding.22
How large is flood exposure?Reported
About 10.4 million detached houses are exposed to clay shrink-swell subsidence.21
What does drought do to houses?Reported
Farmland birds have declined by about 30% since 1989.18
How is nature faring?Reported
A hot, dry summer in which low river flows constrain nuclear cooling while heat, drought and fire load health, food and insurance. SCN-FRA-HDN-01
What will Q1 2027 test first?Expert input
S.3Headline finding
ReportedEQL 4NRF-COUNTRY-FRA-2026-BASELINE-ENE-004
Nuclear output fell to 279 TWh in 2022, the lowest since 1988, as stress-corrosion repairs coincided with heat and low river flows that limited cooling; output recovered to about 362 TWh in 2024.
| Item | Bar, scaled to the largest value | Value |
|---|---|---|
| 2021 | ≈361 | |
| 2022 | 279 | |
| 2024 | ≈362 |
Nuclear provides about two-thirds of French electricity, so a hot, dry summer is an energy event as well as a water and health event. When reactors cut output, France imports at peak European prices and its neighbours lose an exporter725.
S.4At a glance
S.5What each steward reads in it
GCRI · KEY T
Technical Truth
The evidence supports a coupled reading of French risk.
GRF · KEY M
Public Meaning
For most people risk arrives as a heatwave, a cracked wall or a water restriction.
GRA · KEY F
Capital Meaning
Readiness implications only. A national catastrophe regime under rising claims, a low-carbon grid exposed to cooling limits and a slowing emissions trend show where finance-readiness evidence will matter.
NEXUS
Synthesis
France has a low-carbon power system and strong institutions, but its systems share the same summer rivers.
S.6What this edition is, and is not
What this edition is
A baseline: the state of France’s water, energy, food, health and biodiversity systems in 2026, the dependencies between them, the risks that travel through them and the capabilities that hold them. It sets the questions the operational series will answer.
What it is not
Not a national risk assessment, an official warning or a rating. It decides nothing about any ministry, regional or local authority, operator or company. Competent authorities in metropolitan France and the overseas territories keep every mandate they hold.
What comes next
Q1 2027 opens the operational series with a sealed Foundry evidence cut. Each later edition reports what changed against this baseline, new observations, source revisions, method changes, scenario updates and corrections.
Notes
Numbers are the edition’s reference numbers, so a note reads the same in every chapter. The full list, with every source and its licence, is in Annex C. Annex C, references
- 1Citepa (ed.), Rapport Secten, Gaz à effet de serre et polluants atmosphériques : bilan des émissions en France de 1990 à 2024, édition 2025. Citepa, Paris, 2025.back
- 3Haut Conseil pour le Climat (ed.), Rapport annuel 2025. HCC, Paris, July 2025.back
- 40Ministère de la Transition écologique (ed.), Stratégie nationale bas-carbone : projet de troisième stratégie (SNBC-3). MTE, Paris, 2024–2025.back
- 7RTE (ed.), Bilan électrique 2024. RTE, Paris, February 2025.back
- 25RTE (ed.), Bilan électrique 2022. RTE, Paris, February 2023.back
- 8Météo-France (ed.), Bilan climatique de l’année 2022 en France. Météo-France, Saint-Mandé, January 2023.back
- 4Santé publique France (ed.), Chaleur et santé : bilan de l’été 2024. Santé publique France, Saint-Maurice, 2024.back
- 21CGDD (ed.), Retrait-gonflement des argiles : plus de 10 millions de maisons individuelles potentiellement très exposées. Ministère de la Transition écologique, Paris, 2021.back
- 22CGDD (ed.), Évaluation préliminaire des risques d’inondation : exposition de la population aux inondations par débordement de cours d’eau. Ministère de la Transition écologique, Paris.back
- 23Eurostat (ed.), Economic accounts for agriculture: agricultural output by Member State, 2024. Eurostat, Luxembourg, 2025.back
- 18Observatoire national de la biodiversité (ed.), « Évolution des populations d’oiseaux communs spécialistes des milieux agricoles. » ONB–OFB, retrieved 2026-09-30.back
- 9Ministère de la Transition écologique (ed.), Troisième plan national d’adaptation au changement climatique (PNACC-3). MTE, Paris, March 2025.back
- 10Ministère de la Transition écologique (ed.), Trajectoire de réchauffement de référence pour l’adaptation au changement climatique (TRACC). MTE, Paris, 2024.back
- 6INSEE (ed.), Bilan démographique 2024. INSEE, Paris, January 2025.back